// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

use {
    crate::terminal_view::TerminalViewAssistant,
    anyhow::Error,
    carnelian::{AppAssistant, AppContext, ViewAssistantPtr, ViewKey},
};

pub struct TerminalAssistant {
    app_context: AppContext,
}

impl TerminalAssistant {
    pub fn new(app_context: &AppContext) -> TerminalAssistant {
        TerminalAssistant { app_context: app_context.clone() }
    }

    #[cfg(test)]
    fn new_for_test() -> TerminalAssistant {
        let app_context = AppContext::new_for_testing_purposes_only();
        Self::new(&app_context)
    }
}

impl AppAssistant for TerminalAssistant {
    fn setup(&mut self) -> Result<(), Error> {
        Ok(())
    }

    fn create_view_assistant(&mut self, view_key: ViewKey) -> Result<ViewAssistantPtr, Error> {
        Ok(Box::new(TerminalViewAssistant::new(&self.app_context, view_key)))
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use fuchsia_async as fasync;

    #[fasync::run_singlethreaded(test)]
    async fn creates_terminal_view() -> Result<(), Error> {
        let mut app = TerminalAssistant::new_for_test();
        app.create_view_assistant(1)?;
        Ok(())
    }
}